Advanced

Performance of biofilm carriers in anaerobic digestion of sisal leaf waste leachate

Mshandete, Anthony Manoni; Björnsson, Lovisa LU ; Kivaisi, Amelia Kajumulo; Rubindamayugi, Mugassa Steven Thomas and Mattiasson, Bo LU (2008) In Electronic Journal of Biotechnology 11(1).
Abstract
Three methanogenic biofilm bioreactors were studied to evaluate the performance of three types of carriers. The carrier material were consisted of sisal fibre waste, pumice stone and porous glass beads, and the bioprocess evaluated was the methanogenesis anaerobic digestion of sisal leaf waste leachate. Process performance was investigated by increasing the organic loading rate (OLR) step-wise. The best results were obtained from the bioreactor packed with sisal fibre waste. It had the highest chemical oxygen demand ( COD) removal efficiencies in the range of 80-93% at OLRs in the range of 2.4-25 g COD L(-1)d(-1). The degradation pattern of volatile fatty acids (VFAs) showed that the degradation of propionate was limiting at higher OLRs.... (More)
Three methanogenic biofilm bioreactors were studied to evaluate the performance of three types of carriers. The carrier material were consisted of sisal fibre waste, pumice stone and porous glass beads, and the bioprocess evaluated was the methanogenesis anaerobic digestion of sisal leaf waste leachate. Process performance was investigated by increasing the organic loading rate (OLR) step-wise. The best results were obtained from the bioreactor packed with sisal fibre waste. It had the highest chemical oxygen demand ( COD) removal efficiencies in the range of 80-93% at OLRs in the range of 2.4-25 g COD L(-1)d(-1). The degradation pattern of volatile fatty acids (VFAs) showed that the degradation of propionate was limiting at higher OLRs. The stable pH and higher partial alkalinity (PA) of the outflow illustrated that packed-bed bioreactors have a good ability to withstand the variations in load and volatile fatty acid concentrations that can occur in a two-stage anaerobic process. In conclusion, sisal fibre waste was shown to be a novel promising biofilm carrier and would work very well in methanogenic biofilm bioreactors treating sisal leaf tissue waste leachate. Furthermore both sisal wastes are available in the neighbourhood of sisal industries, which makes anaerobic digestion scale up at sisal factory level feasible and cost-effective. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
packed-bed bioreactors, biogas, methanogenesis, packing media
in
Electronic Journal of Biotechnology
volume
11
issue
1
publisher
Pontificia Universidad Católica de Valparaíso
external identifiers
  • wos:000262927000007
  • scopus:47149103322
ISSN
0717-3458
DOI
10.2225/vol11-issue1-fulltext-7
language
English
LU publication?
yes
id
6ccd6bd1-829b-4d53-a5e0-be9a551a696b (old id 1375779)
date added to LUP
2009-04-24 13:58:52
date last changed
2017-08-27 05:05:32
@article{6ccd6bd1-829b-4d53-a5e0-be9a551a696b,
  abstract     = {Three methanogenic biofilm bioreactors were studied to evaluate the performance of three types of carriers. The carrier material were consisted of sisal fibre waste, pumice stone and porous glass beads, and the bioprocess evaluated was the methanogenesis anaerobic digestion of sisal leaf waste leachate. Process performance was investigated by increasing the organic loading rate (OLR) step-wise. The best results were obtained from the bioreactor packed with sisal fibre waste. It had the highest chemical oxygen demand ( COD) removal efficiencies in the range of 80-93% at OLRs in the range of 2.4-25 g COD L(-1)d(-1). The degradation pattern of volatile fatty acids (VFAs) showed that the degradation of propionate was limiting at higher OLRs. The stable pH and higher partial alkalinity (PA) of the outflow illustrated that packed-bed bioreactors have a good ability to withstand the variations in load and volatile fatty acid concentrations that can occur in a two-stage anaerobic process. In conclusion, sisal fibre waste was shown to be a novel promising biofilm carrier and would work very well in methanogenic biofilm bioreactors treating sisal leaf tissue waste leachate. Furthermore both sisal wastes are available in the neighbourhood of sisal industries, which makes anaerobic digestion scale up at sisal factory level feasible and cost-effective.},
  author       = {Mshandete, Anthony Manoni and Björnsson, Lovisa and Kivaisi, Amelia Kajumulo and Rubindamayugi, Mugassa Steven Thomas and Mattiasson, Bo},
  issn         = {0717-3458},
  keyword      = {packed-bed bioreactors,biogas,methanogenesis,packing media},
  language     = {eng},
  number       = {1},
  publisher    = {Pontificia Universidad Católica de Valparaíso},
  series       = {Electronic Journal of Biotechnology},
  title        = {Performance of biofilm carriers in anaerobic digestion of sisal leaf waste leachate},
  url          = {http://dx.doi.org/10.2225/vol11-issue1-fulltext-7},
  volume       = {11},
  year         = {2008},
}